Stop lever



Aug. 2l, 1.923. 1,465,668

v. R. HEFTLER STOP LEVER Filed Dec. 5, 1920 MUN QW,

Patented. Aug. 21, 1923.

, l attesta UNITED stares ea-TENT @5g-HQE@ VICTOR E.. HEETLER, orDETEOInfMIOHIGAN, AssreNoE 'ro SOCIETE DU CAEBEA- 'rEUE ZENITH, or LYON,FRANCE, A OOEPOEATIOrroEFRANCE.: f

Y STOP LEVER@ Application filed December 3, rezo.y seral'ivo. 428,164. y

To all whom 'it may concern:

Be it known that I, VICTOR R. HEETLER, a citizen ofthe United States,residing tt-Detroit, county of Wayne, and State of Michigan, haveinvented a new and useful Improvement in Stop Levers, of which Vthefollowing is a full, clear, and `exact description.

The present invention relates broadly to stop levers and'moreparticularly to levers of this type adapted for use in connect-ion withthrottle shafts of carburetors and the like.

The principal object of the present invention is to provide a sheetmetal lever particularly adapted for use with carburetors, and providedwith a frictionally held adjusting device. Y

Another object of the present invention is to provide a. sheet metalstop lever having one end thereof bent to' form a fixed stop, and theother end bent to receive an adjustable screw and a spring armco-operating therewith to hold the screw in the desired position.

The foregoing and other Objects, together with their attendantadvantages, will be vapparent as the invention becomes betterunderstood, by reference to the accompanying specification and drawingsforming a part thereof, it being premised that changes may made in thevarious details and the manner of operation, within the scope of theappended claims, without departing from the spirit of the invention. v

Figure 1 is a side elevation, partly broken away, of a portion of acarburetor having my improved stop lever applied thereto;

Figure 2 is a side view of the construction illustrated in Figure V1Figure 3 is a top plan view of the stop lever shown in Figure 1. Y

Referring more particularly to the drawing, there is illustrated aAsheet metal stop lever comprising an apertured main body portion 1,having secured thereto in any desired manner a hollow steel hub'Q,adapted to receive a tapper pin or key 3 for attach- Y 'body having anarm projecting outwardlyY ingthe lever to a throttle'shaft or the like4. From the main body portion 1 radiate an arm 5 having its outer endbent inwardly to form a fixed stop 6, and a second arm 7, carrying anadjustable stop screw 8.

For receiving the stop screw 8 the arm 'T is formed with an angulartongue' 9, the outer end of which is rolled upon itself to form alhollow cylinder 10, internally screw threadedto co-operate vwith thescrew 8. It 'i will 'be apparent that both the fixec'l stop' and theadjustable stop 8,`are adapted to engage a suitable projection 11secured at anyV desired position to thecarburctorcasing;

the stop `6 limiting the opening movement of thethrottle shaft and thestop S limiting the extent of closing movementV thereof. y In practice1t has Vbeen -ffoundne'cessary Vvto provide some means for holding theadjustable stop in its adjusted position. This Y has heretofore beenaccomplished by lock nuts and the like requiring the use of a sep',-arate tool for tightening or loosening the same, but in the present casethe arm 7 is provided with a projection 12 having an-offset portion 13bent to underlie and extend substantially parallel to the screw 8. TheoffsetV portion 13 is provided with an opening within which is riveted ahousing 14 for the friction pawl 15 carried by arstem 16 and normallyprojected upwardly into engagement with the knurled head 17, on thescrew 8, by a compression spring 18. The stem 16 may extend through thebot-tom of the housing 14 and have a head 19 formed thereon to preventaccidental loss of the pawl 15. Vith the construction described, it willbe obvious that there is provided an inexpensive sheety metal stop leverconstruction which may be easily produced by stamping and which readilyadapts itself to the purpose intended.

. rIhe advantagesv of the present invention arise from the provisionoffrictional retaining means carried by the lever and enabling an easyadjustment of the movable stop while preventing ythe accidentalVmovement thereof.

Further advantages of the invention arise .from the sheet metalconstruction having a 1. A. stop lever, comprising a sheet metaltherefrom, a tongue on said arm rolled upon*- itself to form a hollowcylinder, screw threads in said cylinder, ascrew adjustably co-operatingtherewith to form an adjustable stop for said lever, a projection onsaid lever extending substantially parallel to the Y longitudinal laxisof said screw, a housing Vlever extending substantially parallel to thelongitudinal axis of said screw, and proy vided with an openingtherein,a housingsecured in said opening, and a. spring,` device carried by saidhousing for maintainingsaid screw in adjusted position, substantially asdescribed.

3. A stoplever comprising a sheet metal body having a pair of armsextending angularly thereiroin, an integral fixed stop carried by one ofsaid arms,an adjustable stop 'Y ,carried the other of Vsaid arins, saidlast mentioned arm having` an integral projection and means carriedbysaid projection and cooperating,r With said, vadjustable stop forholding' the latter in adjusted position,

substantially as described.

4L A stop lever comprising a sheet metal body having Ya substantiallyflat intermediate portion provided With a throttle shaft receiving`opening, a separate hub secured to said body portion and having anopeningrr alining with theopening'therein', said body portion having anarm extending angularly therefrom and forming a fixed stop, a second armextending angularly therefrom, and an adjustable stop carried by saidsecond'arm, substantially as described.

In testimony whereof I have hereuntoset my hand. j j Y Y VICTOR R.HEFTLER.v

